Topics Water Supply

Two views on the water supply, 1939

Visionary planning report for Philadelphia region, 1928

The Water Supply Problem of Philadelphia, 1899

Black-and-white image of a table with numbers in columns

Bacteria in Delaware River, Torresdale Filters, 1913

Black-and-white image of the title page of a government report

Perkiomen Water Supply Surveys, 1866

Black-and-white image of workers in a pit with a sewer opening behind them and text

Frankford Creek: Sad History of an Urban Stream title page